package com.java.module.system.controller.admin;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.java.common.lang.domain.ReturnVO;
import com.java.module.system.service.ISysConfigService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import com.java.common.config.ProjectConfig;
import com.java.common.lang.domain.AjaxResult;
import com.java.common.utils.StringUtils;
import com.java.common.utils.WebKit;
import com.java.common.utils.file.FileUploadUtils;
import com.java.common.utils.file.FileUtils;
import com.java.module.system.domain.Region;
import com.java.module.system.domain.dto.RegionDTO;
import com.java.module.system.service.IRegionService;
import com.java.module.system.service.ISysUeditorService;

/**
 * 通用请求处理
 * 
 * @author Administrator
 */
@RestController
@RequestMapping("/common")
public class CommonController {

    private static final Logger LOG = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ISysUeditorService ueditorService;

    @Autowired
    private IRegionService regionService;

    @Autowired
    private ISysConfigService configService;

    /**
     * 通用下载请求
     * 
     * @param fileName 文件名称
     * @param delete   是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response,
            HttpServletRequest request) {
        try {
            if (!FileUtils.checkAllowDownload(fileName)) {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = ProjectConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            LOG.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求
     */
    @PostMapping("/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception {
        try {
            // 上传文件路径
            String filePath = ProjectConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            AjaxResult ajax = AjaxResult.success();
            ajax.put("fileName", fileName);
            ajax.put("url", WebKit.getHttpFullPath(fileName));
            return ajax;
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        try {
            if (!FileUtils.checkAllowDownload(resource)) {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 文件路径
            String realFilePath = FileUtils.getFileRealPath(resource);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(realFilePath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(realFilePath, response.getOutputStream());
        } catch (Exception e) {
            LOG.error("下载文件失败", e);
        }
    }

    /**
     * 百度编辑器接口
     * 
     * @author yilabao
     * @date 2021年2月24日
     */
    @RequestMapping("/ueditor")
    public String ueditor(HttpServletRequest request) {
        return ueditorService.action(request);
    }

    /**
     * 地区接口
     * 
     * @author yilabao
     * @date 2021年7月15日
     * @param regionDTO
     * @return List<Region>
     */
    @GetMapping("/region/list")
    public List<Region> regionList(@Validated RegionDTO regionDTO) {
        return regionService.selectRegionList(regionDTO);
    }

    /**
     * 系统名称
     */
    @GetMapping("/systemName")
    public ReturnVO<String> systemName() {
        return ReturnVO.success(configService.selectConfigByKey("system.name"));
    }

}